Shade-holder



W. E. HAWKINS.

SHADE HOLDER.

APPLICATION FILED MAR-'3, 1919.

1,335,437, v Pathfied Mar. 30, 1920.

WILLIAM E. HAWKINS, 0F AMITYIIILLE, NEW YORK.

SHADE-HOLDER.

Specification of Letters Patent. Patented Mar, 30, 1920,

Application filed March 3, 1919. Serial No. 280,450. g

To all whom it may concern:

Be it known that I, WILLIAM E. HAWKINS, a citizen of the United States, residing at 'Amityville, in the county of Suffolk and State of New York, have invented a new and useful Improvement in Shade-Holders; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this application, and represent, in'

Figure 1 a view in side elevation of my improved shade-holder. as applied to a threaded, incandescent electric lamp-socket.

F 1g. 2 a view showing the shade-holder as detached from the socket.

Fig. 3 a broken sectional view on an enlar ed scale showing the positioningof the s ade-holder upon the socket by the seating of the lower thread of the socket upon one of the threads of the flaring upstanding threaded collar of the holder.

My invention relates to an improved shade-holder for threaded, incandescent electric lamp-sockets, the object being to produce a simple, reliable and convenient holder constructed with particular reference to compensating for initial variations in the sockets or subsequent variations in their standard gage, due to lacquering or otherwise finishing them.

With these ends in View, my invention consists in a shade-holder rovided with an upstanding outwardly flaring threaded coupling-collar. t

In carrying out my invention, as herein shown, the shade-holder 2 which may be of any ap roved form to suit the glassware, is provided with a concentric upstanding outwardly fiaringthreaded cou ling-collar 3 which is designed to receive t e threaded lower end of any standard threaded incandescent electric lamp-socket 4, it being understood that the lower end of the socket is cylindrical and that the" threads'are formed directly upon it, rather than uponthe crown of any bead at its lower end. When such a shade-holder is applied to such a socket, the threads of the holder'will be screwed upon the threads of the socket until the tapering character of the threaded collar of the holder causes the lower thread of the socket to be brought to a bearing upon one of the threads of the collar, whereuponthe holder will be seated upon the socket and thus determined in position thereon. The amount to which the holder will be turned upon the socket will, of course, depend upon the flare of the collar and upon the diameter of the socket, but these variations, whatever they are, will be compensated for by the taper of the collar, it being designed that the collar shall be sufliciently tapered and provided with enough threads to cover the range of variations in the initial size of the sockets,

or variations due to lacquering them, or to.

other causes.

I claim A shade-holder for standard threaded, incandescent lamp-sockets having threads of uniform diameter, the said shade-holder be" ing'adapted for the reception of a shade and formed with a concentric upwardly projecting flaring threaded coupling-collar, the threads whereof progressively decrease in diameter inversely with its flare and co-act with the uniform threads of the lamp-socket to position and bind the shade-holder thereupon.

In testimony whereof, I have signed this specification in the presence of two subscribmg witnesses.

WILLIAM E. HAWKINS.

Witnesses:

CHAs. V. DAY, SAMUEL EDGAR, 

